He stood _____ and waited for the bus.
| A．in the way | B．by the way | C．on the playground | D．at the bus stop |
I_____ go home ______the concert was over.
| A．didn’t, until | B．wasn’t , till | C．don’t, until | D．won’t , till |
Thank you for ______me to join you.
| A．invite | B．invitation | C．asking | D．Ask |
Students in town go to work ___their bikes.
| A．by | B．ride | C．on | D．in |
—______ do you go skateboarding? --- Twice a week.
| A．How soon | B．How far | C．How often | D．How long |